13381388 has 12 divisors (see below), whose sum is σ = 23597112. Its totient is φ = 6639360.

The previous prime is 13381373. The next prime is 13381393. The reversal of 13381388 is 88318331.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12245 + ... + 13292.

It is an arithmetic number, because the mean of its divisors is an integer number (1966426).

Almost surely, 2^13381388 is an apocalyptic number.

It is an amenable number.

13381388 is a deficient number, since it is larger than the sum of its proper divisors (10215724).

13381388 is a wasteful number, since it uses less digits than its factorization.

13381388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25672 (or 25670 counting only the distinct ones).

The product of its digits is 13824, while the sum is 35.

The square root of 13381388 is about 3658.0579547077. The cubic root of 13381388 is about 237.4107542798.

The spelling of 13381388 in words is "thirteen million, three hundred eighty-one thousand, three hundred eighty-eight".